Looking for single LS1 retainer & keepers for install height testing

[Ondonti]

Not sure if this is the kind of part anyone has hanging around.
I want to find out what the install height will be with a stock LS1 retainer (non chevy head) so I can figure out how much clearance I have, and if I can change install height with offset retainers or keepers. SBC has a monopoly on beehive springs

Or if I can buy them (singles) at the dealer for cheap, let me know.

[The Sad]

I have some retainers and keepers on my old heads I'd probably be willing to part with.  PM me and lets discuss.